California has led the way in deploying and committing to clean energy for a long time. In August its legislature strengthened that commitment by passing a bill to stop using fossil fuels entirely by 2045. It is the second state to do so, following Hawaii. The bill still needs to be passed by the Senate and signed by the governor. Both actions are expected to occur.
In an effort to tackle plastic pollution, New Zealand is joining a growing list of countries banning single-use plastic bags for good. Prime Minister Jacinda Ardern says in a press statement that the ban was necessary to safeguard New Zealand’s clean and green reputation.
The battle to reduce carbon emissions is heavily focused on electricity generation, transportation, buildings, and agriculture, which collectively account for more than 75% of the total. However, there are other sources of carbon emissions that cannot be ignored. Among industrial activities, the production of cement is responsible for 7% of industrial energy use and is the second largest industrial emitter of carbon dioxide. Making cement accounts for about 7% of global emissions.
A recent study published in Nature Climate Change looked at what emission reductions are needed to meet the climate targets of the Paris Accords. The results are sobering.
Hydrogen is widely considered to be a desirable source of clean energy. It can be used in fuel cells to power electric motors in cars or can be burned directly in internal combustion engines. If it is compressed or converted to liquid, it can be efficiently stored and transported. Most of all, when it is used as an energy source, the only emission it produces is water.
The ascendance of natural gas over coal during the past decade has been driven primarily by fracking technology that has provided large quantities of the stuff at low prices. But beyond that, there are environmental issues as well. Natural gas emits 50 to 60% less carbon dioxide when combusted in a new, efficient natural gas power plant compared with emission from a typical new coal plant. It appears to be a win-win situation.
U.S. automakers have always been reluctant partners in the nation’s efforts to reduce air pollution and improve fuel efficiency. There have been struggles for decades between the carmakers and the government in setting Corporate Average Fuel Economy (or CAFÉ) standards. During the Obama administration, some of the most demanding fuel economy and emissions standards were mandated.
Since 2015, New York has had in place an energy plan aimed at building a clean, resilient and cost-effective energy system for the state. A key part of that plan is to reduce greenhouse gas emissions by 40% from 1990 levels by the year 2030. Another major goal is to have 50% of the state’s electricity produced from renewable sources by the same year.
Cities are responsible for 70% of the world’s energy-related CO2 emissions and it appears that they are taking responsibility for reducing them. Over 7,000 mayors around the world have signed up to the Global Covenant of Mayors for Climate and Energy, thereby pledging to act on climate change.
Water is life. It’s a fundamental need for every human being on the planet. Each person requires more than five gallons of clean and safe water a day for drinking, cooking, and keeping clean. Dirty water, on the other hand, can be deadly. An estimated 1.8 million people die every year as a result of diarrheal diseases like cholera. And tens of millions of people are seriously sickened by water-related maladies.
Last year was the first year in which more electricity in Europe was generated from the combination of wind, sun, and biomass than from coal. The combination of all clean energy sources (which adds hydropower to the mix) surpassed coal several years ago.
There is big money going into renewable energy and energy-smart technologies and half of that is going into solar power. In 2017, global investments in green energy reached $334 billion and $161 billion of that was in solar.
When considering the greenhouse gas emissions associated with any energy source, it is important to look at the total life cycle emissions both from the direct use of the energy source and from the indirect emissions associated with building the system, producing and transporting fuels and other supplies and, ultimately, decommissioning the system. Taking all of this into consideration is necessary in order to have a full accounting of the carbon impact of power sources.
Clean power gathered unprecedented momentum in 2017. With climate problems on the rise, national and local governments are pushing for more renewable energy and the end of fossil-fueled cars. Corporations around the globe are making major commitments to green technology. Despite the Trump Administration’s open hostility toward clean power and its rejection of climate science, American states, municipalities and private companies are all getting with the program.
2018 is just around the corner. Popular resolutions for the New Year always seem to include things like improving health, traveling more, spending less money, and so on. But one resolution that isn’t as popular but could collectively have a major impact is committing to living a cleaner and greener life.
Clean and abundant water is the most essential need for all human societies and the supply of it is threatened by increasing populations and volatile climate patterns. The quality of water is threatened by a host of contaminants, most of our own making.
On the heels of the Trump Administration’s decision to withdraw from the Paris Climate Accord, France has rolled out ambitious plans to reduce its carbon footprint even further.
Global consumption of coal dropped by 1.7% last year. This is a major change considering that it had increased by an average of 1.9% per year from 2005 to 2015. China, which accounts for about half of the coal burned in the world, used 1.6% less in 2016, as compared to an increase of 3.7% per year over the previous 11 years.
